/* NEW: Tree View Styles */
  .tree-container {
    width: 100%;
    margin: 0;
    background: #ffffff;
    padding: 14px 16px;
    border-radius: 10px;
    border: 1px solid #d6dee8;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
    box-sizing: border-box;
  }
  
  .tree-container h1 {
    margin: 0 0 12px 0;
    color: #1f3447;
    border-bottom: 1px solid #d6dee8;
    padding-bottom: 8px;
    font-size: 20px;
    line-height: 1.2;
  }
  
  .tree {
    font-family: 'Aptos', 'Segoe UI', sans-serif;
    font-size: 12px;
    line-height: 1.3;
    color: #2f3f4d;
  }
  
  .tree-node {
    margin-left: 12px;
    border-left: 1px solid #d6dee8;
    padding-left: 8px;
    margin-top: 2px;
  }
  
  .tree-node-header {
    cursor: pointer;
    padding: 2px 0;
    background: transparent;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border-radius: 0;
    margin: 1px 0;
  }
  
  .tree-node-header:hover {
    background: transparent;
  }
  
  .tree-toggle {
    display: inline-block;
    width: 12px;
    font-weight: bold;
    color: #6b7b8f;
  }
  
  .tree-name {
    font-weight: 600;
    color: #172733;
    padding: 0 2px;
    border-radius: 0;
    border: none;
    background: transparent;
  }
  
  .tree-type {
    color: #35546e;
    font-size: 11px;
    font-style: normal;
    font-weight: 700;
    border: 1px solid #c8d6e3;
    border-radius: 999px;
    padding: 1px 8px;
    background: #eef3f8;
  }
  
  .tree-exchange-count {
    background: #edf2f7;
    color: #30475f;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 700;
    border: 1px solid #d0dae5;
  }
  
  .tree-clickable {
    cursor: pointer;
    color: #0f5fa6;
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
  }
  
  .tree-clickable:hover {
    font-weight: bold;
    color: #0b4b81;
  }
  
  .tree-property {
    margin-left: 16px;
    color: #4c6277;
    font-size: 11px;
    padding: 1px 0;
  }
  
  .tree-prop-name {
    color: #2f5f91;
    font-weight: 600;
  }
  
  .tree-prop-value {
    color: #4c6277;
  }

  .tree-domain-ref {
    margin-left: 16px;
    margin-top: 2px;
    font-size: 11px;
    color: #6b7b8f;
  }

  .tree-domain-link {
    color: #8a5b22;
    font-weight: 700;
  }

  .tree-domain-type {
    color: #4f7a4f;
  }
  
  .tree-children {
    margin-top: 1px;
  }
  
  .tree-collapsed {
    display: none;
  }
  
  .tree-root {
    background: #edf3f9;
    color: #1f3447;
    padding: 12px 14px;

    padding: 9px 13px;
    cursor: pointer;
    user-select: none;
    font-size: 13px;
    transition: all 0.15s ease;
    box-sizing: border-box;
  }

  .select-items div:hover {
    background-color: #00662C !important;
    color: #FFFFFF !important;
    font-weight: 500;
  }

  .select-items div[data-disabled="true"] {
    color: #999;
    cursor: not-allowed;
    background-color: #f5f5f5;
  }

  .select-items div[data-disabled="true"]:hover {
    background-color: #f5f5f5 !important;
    color: #999 !important;
    font-weight: normal;
  }

  button#submitBtn,
  .action-btn { 
    margin-top: 18px;
    width: 100%;
    padding: 14px;
    background-color: #00662C;
    border: none;
    border-radius: 12px;
    color: #FFFFFF;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    font-family: 'Aptos', 'Segoe UI', sans-serif;
    box-shadow: 0 4px 15px rgba(0, 102, 44, 0.6);
  }

  button#submitBtn:hover,
  .action-btn:hover {
      background-color: #005423;
  }

  .action-btn.compact {
    width: auto;
    margin-top: 0;
    padding: 10px 16px;
    font-size: 14px;
    border-radius: 10px;
  }

  .action-btn.secondary {
    background-color: #f2f7f4;
    border: 1px solid #b9d4bf;
    color: #22523a;
    box-shadow: none;
  }

  .action-btn.secondary:hover {
    background-color: #e4f0e8;
  }

  .schema-actions-label {
    margin-top: 14px;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: #1f3447;
  }

  .schema-actions-grid {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 8px;
  }

  .schema-action-item {
    display: grid;
    grid-template-columns: 170px 1fr;
    gap: 10px;
    align-items: center;
  }

  .schema-action-help {
    font-size: 13px;
    color: #345066;
    line-height: 1.3;
  }

  .schema-actions-grid .action-btn {
    margin-top: 0;
    padding: 10px 12px;
    font-size: 14px;
    border-radius: 10px;
    width: 100%;
  }

  .action-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    box-shadow: none;
  }